Senior Platform Engineer

As a Senior Platform Engineer, you will own and improve the AWS infrastructure platform, including Infrastructure as Code (IaC), CI/CD pipelines, deployment automation and developer environments. 

You will lead the migration from AWS CDK/CDKTF to Pulumi, build reusable infrastructure components and improve deployment reliability, observability and cost efficiency across multiple AWS environments. 

1. Infrastructure & Platform Engineering

• • Build and maintain reusable AWS infrastructure components using Pulumi (TypeScript). 

• • Migrate existing AWS CDK/CDKTF infrastructure to Pulumi, ensuring safe migration without recreating production resources. 

• • Manage AWS infrastructure including ECS Fargate, Lambda, API Gateway, CloudFront, WAF, VPC, IAM, SQS, DynamoDB and RDS. 

• • Build and maintain ephemeral environments for developers and pull requests. 

• • Optimise infrastructure performance, resource utilisation and cloud costs. 

1. CI/CD & Automation

• • Extend internal deployment CLI using TypeScript and Pulumi Automation API. 

• • Build and maintain GitHub Actions workflows, reusable actions and deployment automation. 

• • Implement OIDC, merge queues, approval workflows and concurrency controls. 

• • Manage release pipelines across Dev, Test, UAT and Production environments. 

1. Monitoring & Reliability

• • Implement observability standards using Datadog, including APM, logging, monitoring, dashboards and SLOs. 

• • Improve distributed tracing across AWS Lambda and ECS services. 

• • Maintain deployment reliability, incident runbooks and root cause analysis. 

• • Improve deployment efficiency, targeting under 15 minutes per domain. 

1. Collaboration & Technical Leadership

• • Work closely with Platform Leads, engineers and product teams to deliver infrastructure initiatives. 

• • Review code, provide technical guidance and coach engineers on IaC and infrastructure best practices. 

• • Document architecture decisions, technical designs and deployment guidelines. 

• • Coordinate infrastructure migrations and communicate technical risks. 

Technical Skills 

• • Strong experience with AWS services: ECS Fargate, ECR, Lambda, API Gateway, CloudFront, WAF, ALB, VPC, IAM, SQS, EventBridge, DynamoDB and RDS. 

• • Strong Infrastructure as Code (IaC) experience using Pulumi with TypeScript or AWS CDK with TypeScript. 

• • Proficiency in TypeScript and software engineering best practices, including unit testing. 

• • Hands-on experience with GitHub Actions and advanced CI/CD automation. 

• • Experience with Datadog or equivalent observability tools (APM, logging, monitoring, SLOs). 

• • Good understanding of AWS networking, security, IAM, KMS, Secrets Manager and OIDC. 

Experience 

• • 5+ years of experience as a Software Engineer or Platform Engineer. 

• • 3+ years of hands-on experience with Infrastructure as Code and production AWS environments. 

• • Experience migrating live infrastructure between IaC tools or state backends, including resource imports and state migration. 

• • Experience with multi-account AWS architecture and cross-account access. 

• • Experience working with monorepos and trunk-based development. 

• • Strong English communication skills (both verbal & written), especially in the global software development environment